🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.6

Radius: 1.84

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 0.61 AU - 0.63 AU

Year: 207 Days

Day: 34.5 Hours

Environment

Temp: 11 °C

Axial Tilt: 12.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 64,115,038 km

• M1: 165,754 km (0.037 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.77 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.2

Radius: 1.59

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 0.71 AU - 0.83 AU

Year: 287 Days

Day: 25.1 Hours

Environment

Temp: 1 °C

Axial Tilt: 33.3 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.39

Radius: 0.69

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 0.71 AU - 1.05 AU

Year: 351 Days

Day: 35.1 Hours

Environment

Temp: -41 °C

Axial Tilt: 35.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.38

Radius: 1.81

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 0.87 AU - 1.17 AU

Year: 437 Days

Day: 44.2 Hours

Environment

Temp: -61 °C

Axial Tilt: 35.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 64,115,038 km

• M1: 842,685 km (0.075 R)

Asteroid Belt

Center: 1.96 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 2.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 397.3

Radius: 9.2

Gravity: 4.69 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 2.79 AU - 3.01 AU

Year: 2097 Days

Day: 10 Hours

Environment

Temp: -139 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 64,115,038 km

• M1: 114,442 km (0.037 R)
• M2: 459,265 km (0.097 R)
• M3: 1,250,489 km (0.071 R)
• M4: 2,506,812 km (0.082 R)
• M5: 3,680,706 km (0.084 R)
• M6: 4,914,440 km (0.079 R)
• M7: 5,425,316 km (0.086 R)
• M8: 5,716,583 km (0.103 R)
• M9: 6,379,601 km (0.089 R)
• M10: 6,781,122 km (0.096 R)
• M11: 7,943,946 km (0.116 R)
• M12: 10,487,260 km (0.05 R)
• M13: 11,480,141 km (0.076 R)
• M14: 13,366,570 km (0.091 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 433.3

Radius: 10.7

Gravity: 3.78 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 3.06 AU - 3.42 AU

Year: 2476 Days

Day: 14.1 Hours

Environment

Temp: -135 °C

Axial Tilt: 45.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 64,115,038 km

• M1: 139,276 km (0.059 R)
• M2: 727,345 km (0.08 R)
• M3: 1,333,815 km (0.119 R)
• M4: 2,611,081 km (0.061 R)
• M5: 3,113,281 km (0.065 R)
• M6: 3,626,402 km (0.097 R)
• M7: 6,139,497 km (0.1 R)
• M8: 6,548,946 km (0.084 R)
• M9: 7,422,598 km (0.108 R)
• M10: 8,590,508 km (0.088 R)
• M11: 9,136,391 km (0.103 R)
• M12: 12,663,909 km (0.09 R)
• M13: 14,639,049 km (0.116 R)
• M14: 15,002,572 km (0.095 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 192.1

Radius: 8.3

Gravity: 2.79 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 3.3 AU - 4.16 AU

Year: 3059 Days

Day: 13.5 Hours

Environment

Temp: -142 °C

Axial Tilt: 5.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 64,115,038 km

• M1: 103,671 km (0.107 R)
• M2: 381,475 km (0.114 R)
• M3: 658,979 km (0.11 R)
• M4: 961,466 km (0.086 R)
• M5: 1,497,624 km (0.119 R)
• M6: 1,828,684 km (0.056 R)
• M7: 3,522,282 km (0.118 R)
• M8: 4,299,144 km (0.062 R)
• M9: 4,687,948 km (0.109 R)
• M10: 6,188,565 km (0.12 R)
• M11: 7,397,316 km (0.074 R)
• M12: 8,246,732 km (0.093 R)
• M13: 8,817,598 km (0.104 R)
• M14: 9,286,587 km (0.086 R)
• M15: 9,904,277 km (0.107 R)
• M16: 10,618,756 km (0.089 R)
• M17: 11,885,102 km (0.1 R)
• M18: 12,150,040 km (0.051 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 354.3

Radius: 8.4

Gravity: 5.02 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 4.67 AU - 6.03 AU

Year: 5254 Days

Day: 10.5 Hours

Environment

Temp: -162 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 64,115,038 km

• M1: 115,789 km (0.058 R)
• M2: 424,110 km (0.108 R)
• M3: 899,233 km (0.067 R)
• M4: 1,174,194 km (0.104 R)
• M5: 1,595,760 km (0.109 R)
• M6: 2,244,267 km (0.111 R)
• M7: 2,933,165 km (0.09 R)
• M8: 3,298,483 km (0.091 R)
• M9: 3,653,030 km (0.11 R)
• M10: 4,897,086 km (0.113 R)
• M11: 9,185,608 km (0.117 R)
• M12: 9,810,030 km (0.083 R)
• M13: 12,926,154 km (0.062 R)
• M14: 14,266,999 km (0.12 R)
• M15: 17,222,604 km (0.117 R)
• M16: 17,574,309 km (0.099 R)
• M17: 24,385,650 km (0.104 R)

Planet 9 - Ice Giant

Semi-Major Axis: 11.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 575.1

Radius: 3.3

Gravity: 52.81 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 11.55 AU - 11.75 AU

Year: 16884 Days

Day: 16.7 Hours

Environment

Temp: -208 °C

Axial Tilt: 1.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 64,115,038 km

• M1: 41,738 km (0.115 R)
• M2: 154,535 km (0.078 R)
• M3: 334,202 km (0.043 R)
• M4: 780,602 km (0.034 R)
• M5: 2,120,999 km (0.1 R)
• M6: 2,322,806 km (0.106 R)
• M7: 2,907,584 km (0.101 R)
• M8: 3,726,034 km (0.065 R)
• M9: 5,499,068 km (0.088 R)
• M10: 7,396,119 km (0.07 R)
• M11: 7,718,652 km (0.12 R)
• M12: 9,419,131 km (0.072 R)
• M13: 17,637,290 km (0.092 R)
• M14: 22,877,105 km (0.059 R)
• M15: 23,658,903 km (0.096 R)
• M16: 23,956,603 km (0.073 R)
• M17: 24,256,696 km (0.11 R)
• M18: 30,330,669 km (0.1 R)
• M19: 30,447,505 km (0.102 R)
• M20: 35,758,529 km (0.109 R)
• M21: 36,413,468 km (0.101 R)
• M22: 52,079,806 km (0.049 R)
• M23: 62,211,920 km (0.112 R)
• M24: 63,923,021 km (0.045 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 327 - 15,809 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit